<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>vue knowledge</title>
</head>

<body>
    <div id="app">
        {{test}}
    </div>
</body>

<script src="../js/vue.js"></script>
<script>
    vm = new Vue({
        el: '#app',
        data() {
            return {
                test: 1
            }
        },
        mounted() {

        },
    });

    console.log(vm.$data);
</script>

</html>